2AQK8-D65Bluetooth Earphones

CHANDASUNG TECH True Wireless Eaphones CHANDASUNG D65 INSTRUCTION FC C STATEMENT : This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. RF warning statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

FCCID:2AQK8-D65

LabelLocationOnEUT Label FCCID:2AQK8-D65

FCCID:2AQK8-D65 BTANT

version01 ChandasungTech(Shenzhen)Co.,Ltd. DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:D65,D58,D59,D62,D63,D66,D66B,D67,D68,D69,D69A FCCID:2AQK8-D65 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsfor internal antennatype(s) describedbelow: ModelNo.ofantenna:N/A Typeofantenna:FPCAntenna Gainoftheantenna:1.5dBi Frequencyrange: 2402MHz~2480MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname:ChandasungTech(Shenzhen)Co.,Ltd. Address:Rm802,BuildingB,ZhonghengshengHigh-techZone,No.3XinyuRoadXinqiao Street,Bao'anDistrict,Shenzhen,China City:Shenzhen ZIP/Postalcode:N/A Country:Chin Place:Shenzhen,China Date:1/12/2021 Signature:

RFEXPOSUREEVALUATION FCCID:2AQK8-D65 AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) Radiationasspecifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 2402 -0.323 -0.323±1 0.677 5 0.362 3 BDR 2441 -0.198 -0.198±1 0.802 5 0.3763 2480 -0.636 -0.636 ±10.36450.3423 2402 -0.842 -0.842±1 0.158 5 0.321 3 EDR 2441 -0.836 -0.836±1 0.164 5 0.3243 2480 -1.431 -1.431 ±1-0.43150.2853 TestResults:PASS.

Report No.: 18220WC00172101FCC ID: 2AQK8-D65Page 1 of 51 Code:AB-RF-05-a FCC TEST REPORT Client Name:Chandasung Tech (Shenzhen) Co., Ltd. Address: Rm 802, Building B, Zhonghengsheng High-tech Zone, No.3 Xinyu Road Xinqiao Street, Bao'an District, Shenzhen, China Product Name:Bluetooth Earphones Date:Dec. 30, 2020 Shenzhen Anbotek Compliance Laboratory Limited Report No.: 18220WC00172101FCC ID: 2AQK8-D65Page 2 of 51 Code:AB-RF-05-a Contents 1. General Information ............................................................................................................................................... 5 1.1. Client Information ....................................................................................................................................... 5 1.2. Description of Device (EUT) ..................................................................................................................... 5 1.3. Auxiliary Equipment Used During Test ................................................................................................... 6 1.4. Description of Test Modes ........................................................................................................................ 6 1.5. List of channels ........................................................................................................................................... 7 1.6. Description Of Test Setup ......................................................................................................................... 8 1.7. Test Equipment List .................................................................................................................................... 9 1.8. Measurement Uncertainty ....................................................................................................................... 10 1.9. Description of Test Facility ...................................................................................................................... 10 2. Summary of Test Results ................................................................................................................................... 11 3. Conducted Emission Test ................................................................................................................................... 12 3.1. Test Standard and Limit .......................................................................................................................... 12 3.2. Test Setup .................................................................................................................................................. 12 3.3. Test Procedure .......................................................................................................................................... 12 3.4. Test Data .................................................................................................................................................... 12 4. Radiation Spurious Emission and Band Edge ................................................................................................ 17 4.1. Test Standard and Limit .......................................................................................................................... 17 4.2. Test Setup .................................................................................................................................................. 17 4.3. Test Procedure .......................................................................................................................................... 18 4.4. Test Data .................................................................................................................................................... 19 5. Maximum Peak Output Power Test .................................................................................................................. 27 5.1. Test Standard and Limit .......................................................................................................................... 27 5.2. Test Setup .................................................................................................................................................. 27 5.3. Test Procedure .......................................................................................................................................... 27 5.4. Test Data .................................................................................................................................................... 27 6. 20DB Occupy Bandwidth Test ........................................................................................................................... 31 6.1. Test Standard ............................................................................................................................................ 31 6.2. Test Setup .................................................................................................................................................. 31 6.3. Test Procedure .......................................................................................................................................... 31 6.4. Test Data .................................................................................................................................................... 31 7. Carrier Frequency Separation Test ................................................................................................................... 35 7.1. Test Standard and Limit .......................................................................................................................... 35 7.2. Test Setup .................................................................................................................................................. 35 7.3. Test Procedure ........................................................................................................…

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FCCID:2AQK8-D65 PhotoofConductedEmissionMeasurement PhotoofRadiationEmissionTest